60  * driver by setting ds->num_lag_ids. It is perfectly legal to leave
190 			if (dp->ds->index != sw_index)  in dsa_switch_find()
193 			return dp->ds;  in dsa_switch_find()
291 	struct dsa_switch *ds = dp->ds;  in dsa_link_touch()  local
295 	dst = ds->dst;  in dsa_link_touch()
316 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup_routing_table()  local
317 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_setup_routing_table()
401 dsa_switch_preferred_default_local_cpu_port(struct dsa_switch *ds)  in dsa_switch_preferred_default_local_cpu_port()  argument
405 	if (!ds->ops->preferred_default_local_cpu_port)  in dsa_switch_preferred_default_local_cpu_port()
408 	cpu_dp = ds->ops->preferred_default_local_cpu_port(ds);  in dsa_switch_preferred_default_local_cpu_port()
412 	if (WARN_ON(!dsa_port_is_cpu(cpu_dp) || cpu_dp->ds != ds))  in dsa_switch_preferred_default_local_cpu_port()
431 		preferred_cpu_dp = dsa_switch_preferred_default_local_cpu_port(cpu_dp->ds);  in dsa_tree_setup_cpu_ports()
436 		dsa_switch_for_each_port(dp, cpu_dp->ds) {  in dsa_tree_setup_cpu_ports()
461 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup()  local
483 			dev_warn(ds->dev,  in dsa_port_setup()
501 			dev_warn(ds->dev,  in dsa_port_setup()
569 static int dsa_switch_setup_tag_protocol(struct dsa_switch *ds)  in dsa_switch_setup_tag_protocol()  argument
571 	const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;  in dsa_switch_setup_tag_protocol()
572 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_setup_tag_protocol()
579 	err = ds->ops->change_tag_protocol(ds, tag_ops->proto);  in dsa_switch_setup_tag_protocol()
582 		dev_err(ds->dev, "Unable to use tag protocol \"%s\": %pe\n",  in dsa_switch_setup_tag_protocol()
589 		err = tag_ops->connect(ds);  in dsa_switch_setup_tag_protocol()
594 	if (ds->ops->connect_tag_protocol) {  in dsa_switch_setup_tag_protocol()
595 		err = ds->ops->connect_tag_protocol(ds, tag_ops->proto);  in dsa_switch_setup_tag_protocol()
597 			dev_err(ds->dev,  in dsa_switch_setup_tag_protocol()
608 		tag_ops->disconnect(ds);  in dsa_switch_setup_tag_protocol()
613 static void dsa_switch_teardown_tag_protocol(struct dsa_switch *ds)  in dsa_switch_teardown_tag_protocol()  argument
615 	const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;  in dsa_switch_teardown_tag_protocol()
618 		tag_ops->disconnect(ds);  in dsa_switch_teardown_tag_protocol()
621 static int dsa_switch_setup(struct dsa_switch *ds)  in dsa_switch_setup()  argument
625 	if (ds->setup)  in dsa_switch_setup()
628 	/* Initialize ds->phys_mii_mask before registering the user MDIO bus  in dsa_switch_setup()
633 	ds->phys_mii_mask |= dsa_user_ports(ds);  in dsa_switch_setup()
635 	err = dsa_switch_devlink_alloc(ds);  in dsa_switch_setup()
639 	err = dsa_switch_register_notifier(ds);  in dsa_switch_setup()
643 	ds->configure_vlan_while_not_filtering = true;  in dsa_switch_setup()
645 	err = ds->ops->setup(ds);  in dsa_switch_setup()
649 	err = dsa_switch_setup_tag_protocol(ds);  in dsa_switch_setup()
653 	if (!ds->user_mii_bus && ds->ops->phy_read) {  in dsa_switch_setup()
654 		ds->user_mii_bus = mdiobus_alloc();  in dsa_switch_setup()
655 		if (!ds->user_mii_bus) {  in dsa_switch_setup()
660 		dsa_user_mii_bus_init(ds);  in dsa_switch_setup()
662 		err = mdiobus_register(ds->user_mii_bus);  in dsa_switch_setup()
667 	dsa_switch_devlink_register(ds);  in dsa_switch_setup()
669 	ds->setup = true;  in dsa_switch_setup()
673 	if (ds->user_mii_bus && ds->ops->phy_read)  in dsa_switch_setup()
674 		mdiobus_free(ds->user_mii_bus);  in dsa_switch_setup()
676 	if (ds->ops->teardown)  in dsa_switch_setup()
677 		ds->ops->teardown(ds);  in dsa_switch_setup()
679 	dsa_switch_unregister_notifier(ds);  in dsa_switch_setup()
681 	dsa_switch_devlink_free(ds);  in dsa_switch_setup()
685 static void dsa_switch_teardown(struct dsa_switch *ds)  in dsa_switch_teardown()  argument
687 	if (!ds->setup)  in dsa_switch_teardown()
690 	dsa_switch_devlink_unregister(ds);  in dsa_switch_teardown()
692 	if (ds->user_mii_bus && ds->ops->phy_read) {  in dsa_switch_teardown()
693 		mdiobus_unregister(ds->user_mii_bus);  in dsa_switch_teardown()
694 		mdiobus_free(ds->user_mii_bus);  in dsa_switch_teardown()
695 		ds->user_mii_bus = NULL;  in dsa_switch_teardown()
698 	dsa_switch_teardown_tag_protocol(ds);  in dsa_switch_teardown()
700 	if (ds->ops->teardown)  in dsa_switch_teardown()
701 		ds->ops->teardown(ds);  in dsa_switch_teardown()
703 	dsa_switch_unregister_notifier(ds);  in dsa_switch_teardown()
705 	dsa_switch_devlink_free(ds);  in dsa_switch_teardown()
707 	ds->setup = false;  in dsa_switch_teardown()
734 		dsa_switch_teardown(dp->ds);  in dsa_tree_teardown_switches()
776 		err = dsa_switch_setup(dp->ds);  in dsa_tree_setup_switches()
840 		if (dp->ds->num_lag_ids > len)  in dsa_tree_setup_lags()
841 			len = dp->ds->num_lag_ids;  in dsa_tree_setup_lags()
1086 static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index)  in dsa_port_touch()  argument
1088 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_touch()
1091 	dsa_switch_for_each_port(dp, ds)  in dsa_port_touch()
1099 	dp->ds = ds;  in dsa_port_touch()
1132 	struct dsa_switch *mds, *ds = dp->ds;  in dsa_get_tag_protocol()  local
1142 		mds = mdp->ds;  in dsa_get_tag_protocol()
1151 	return ds->ops->get_tag_protocol(ds, dp->index, tag_protocol);  in dsa_get_tag_protocol()
1158 	struct dsa_switch *ds = dp->ds;  in dsa_port_parse_cpu()  local
1159 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_parse_cpu()
1166 			dev_err(ds->dev,  in dsa_port_parse_cpu()
1176 		if (!ds->ops->change_tag_protocol) {  in dsa_port_parse_cpu()
1177 			dev_err(ds->dev, "Tag protocol cannot be modified\n");  in dsa_port_parse_cpu()
1183 			dev_warn(ds->dev,  in dsa_port_parse_cpu()
1197 		dev_warn(ds->dev, "No tagger for this switch\n");  in dsa_port_parse_cpu()
1203 			dev_err(ds->dev,  in dsa_port_parse_cpu()
1277 static int dsa_switch_parse_ports_of(struct dsa_switch *ds,  in dsa_switch_parse_ports_of()  argument
1290 			dev_err(ds->dev, "no ports child node found\n");  in dsa_switch_parse_ports_of()
1302 		if (reg >= ds->num_ports) {  in dsa_switch_parse_ports_of()
1303 			dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%u)\n",  in dsa_switch_parse_ports_of()
1304 				port, reg, ds->num_ports);  in dsa_switch_parse_ports_of()
1310 		dp = dsa_to_port(ds, reg);  in dsa_switch_parse_ports_of()
1324 static int dsa_switch_parse_member_of(struct dsa_switch *ds,  in dsa_switch_parse_member_of()  argument
1335 	ds->index = m[1];  in dsa_switch_parse_member_of()
1337 	ds->dst = dsa_tree_touch(m[0]);  in dsa_switch_parse_member_of()
1338 	if (!ds->dst)  in dsa_switch_parse_member_of()
1341 	if (dsa_switch_find(ds->dst->index, ds->index)) {  in dsa_switch_parse_member_of()
1342 		dev_err(ds->dev,  in dsa_switch_parse_member_of()
1344 			ds->index, ds->dst->index);  in dsa_switch_parse_member_of()
1348 	if (ds->dst->last_switch < ds->index)  in dsa_switch_parse_member_of()
1349 		ds->dst->last_switch = ds->index;  in dsa_switch_parse_member_of()
1354 static int dsa_switch_touch_ports(struct dsa_switch *ds)  in dsa_switch_touch_ports()  argument
1359 	for (port = 0; port < ds->num_ports; port++) {  in dsa_switch_touch_ports()
1360 		dp = dsa_port_touch(ds, port);  in dsa_switch_touch_ports()
1368 static int dsa_switch_parse_of(struct dsa_switch *ds, struct device_node *dn)  in dsa_switch_parse_of()  argument
1372 	err = dsa_switch_parse_member_of(ds, dn);  in dsa_switch_parse_of()
1376 	err = dsa_switch_touch_ports(ds);  in dsa_switch_parse_of()
1380 	return dsa_switch_parse_ports_of(ds, dn);  in dsa_switch_parse_of()
1433 static int dsa_switch_parse_ports(struct dsa_switch *ds,  in dsa_switch_parse_ports()  argument
1446 		dp = dsa_to_port(ds, i);  in dsa_switch_parse_ports()
1464 static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd)  in dsa_switch_parse()  argument
1468 	ds->cd = cd;  in dsa_switch_parse()
1473 	ds->index = 0;  in dsa_switch_parse()
1474 	ds->dst = dsa_tree_touch(0);  in dsa_switch_parse()
1475 	if (!ds->dst)  in dsa_switch_parse()
1478 	err = dsa_switch_touch_ports(ds);  in dsa_switch_parse()
1482 	return dsa_switch_parse_ports(ds, cd);  in dsa_switch_parse()
1485 static void dsa_switch_release_ports(struct dsa_switch *ds)  in dsa_switch_release_ports()  argument
1491 	dsa_switch_for_each_port_safe(dp, next, ds) {  in dsa_switch_release_ports()
1501 			dev_info(ds->dev,  in dsa_switch_release_ports()
1509 			dev_info(ds->dev,  in dsa_switch_release_ports()
1521 			dev_info(ds->dev,  in dsa_switch_release_ports()
1533 static int dsa_switch_probe(struct dsa_switch *ds)  in dsa_switch_probe()  argument
1540 	if (!ds->dev)  in dsa_switch_probe()
1543 	pdata = ds->dev->platform_data;  in dsa_switch_probe()
1544 	np = ds->dev->of_node;  in dsa_switch_probe()
1546 	if (!ds->num_ports)  in dsa_switch_probe()
1550 		err = dsa_switch_parse_of(ds, np);  in dsa_switch_probe()
1552 			dsa_switch_release_ports(ds);  in dsa_switch_probe()
1554 		err = dsa_switch_parse(ds, pdata);  in dsa_switch_probe()
1556 			dsa_switch_release_ports(ds);  in dsa_switch_probe()
1564 	dst = ds->dst;  in dsa_switch_probe()
1568 		dsa_switch_release_ports(ds);  in dsa_switch_probe()
1575 int dsa_register_switch(struct dsa_switch *ds)  in dsa_register_switch()  argument
1580 	err = dsa_switch_probe(ds);  in dsa_register_switch()
1581 	dsa_tree_put(ds->dst);  in dsa_register_switch()
1588 static void dsa_switch_remove(struct dsa_switch *ds)  in dsa_switch_remove()  argument
1590 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_remove()
1593 	dsa_switch_release_ports(ds);  in dsa_switch_remove()
1597 void dsa_unregister_switch(struct dsa_switch *ds)  in dsa_unregister_switch()  argument
1600 	dsa_switch_remove(ds);  in dsa_unregister_switch()
1610 void dsa_switch_shutdown(struct dsa_switch *ds)  in dsa_switch_shutdown()  argument
1618 	if (!ds->setup)  in dsa_switch_shutdown()
1623 	dsa_switch_for_each_cpu_port(dp, ds)  in dsa_switch_shutdown()
1628 	dsa_switch_for_each_user_port(dp, ds) {  in dsa_switch_shutdown()
1639 	dsa_switch_for_each_cpu_port(dp, ds) {  in dsa_switch_shutdown()
1656 int dsa_switch_suspend(struct dsa_switch *ds)  in dsa_switch_suspend()  argument
1662 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_suspend()
1671 	if (ds->ops->suspend)  in dsa_switch_suspend()
1672 		ret = ds->ops->suspend(ds);  in dsa_switch_suspend()
1678 int dsa_switch_resume(struct dsa_switch *ds)  in dsa_switch_resume()  argument
1683 	if (ds->ops->resume)  in dsa_switch_resume()
1684 		ret = ds->ops->resume(ds);  in dsa_switch_resume()
1690 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_resume()
1731 bool dsa_fdb_present_in_other_db(struct dsa_switch *ds, int port,  in dsa_fdb_present_in_other_db()  argument
1735 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_fdb_present_in_other_db()
1752 bool dsa_mdb_present_in_other_db(struct dsa_switch *ds, int port,  in dsa_mdb_present_in_other_db()  argument
1756 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_mdb_present_in_other_db()
1776 int dsa_port_simple_hsr_validate(struct dsa_switch *ds, int port,  in dsa_port_simple_hsr_validate()  argument
1783 	err = hsr_get_port_type(hsr, dsa_to_port(ds, port)->user, &type);  in dsa_port_simple_hsr_validate()
1797 int dsa_port_simple_hsr_join(struct dsa_switch *ds, int port,  in dsa_port_simple_hsr_join()  argument
1801 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;  in dsa_port_simple_hsr_join()
1804 	err = dsa_port_simple_hsr_validate(ds, port, hsr, extack);  in dsa_port_simple_hsr_join()
1808 	dsa_hsr_foreach_port(other_dp, ds, hsr) {  in dsa_port_simple_hsr_join()
1820 int dsa_port_simple_hsr_leave(struct dsa_switch *ds, int port,  in dsa_port_simple_hsr_leave()  argument
1823 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;  in dsa_port_simple_hsr_leave()
1825 	dsa_hsr_foreach_port(other_dp, ds, hsr) {  in dsa_port_simple_hsr_leave()